Fair Value Measurements and Derivative Instruments - Non-Derivative Instruments (Details)	3 Months Ended									3 Months Ended				3 Months Ended		12 Months Ended					3 Months Ended
	Mar. 31, 2015 USD ($)	Dec. 31, 2014	Mar. 31, 2015 Interest rate swaps USD ($)	Dec. 31, 2014 Interest rate swaps USD ($)	Mar. 31, 2015 Interest rate swaps Quantum of the Seas facility	Mar. 31, 2015 Interest rate swaps Fair Value Hedging 5.41% Fixed rate debt USD ($)	Dec. 31, 2014 Interest rate swaps Fair Value Hedging 5.41% Fixed rate debt USD ($)	Mar. 31, 2015 Interest rate swaps Fair Value Hedging 5.25% Fixed rate debt USD ($)	Dec. 31, 2014 Interest rate swaps Fair Value Hedging 5.25% Fixed rate debt USD ($)	Mar. 31, 2015 Interest rate swaps Cash flow hedge Quantum of the Seas facility USD ($)	Mar. 31, 2015 Interest rate swaps Cash flow hedge Celebrity Reflection floating rate debt USD ($)	Mar. 31, 2015 Foreign exchange contracts USD ($)	Dec. 31, 2014 Foreign exchange contracts USD ($)	Mar. 31, 2015 Pullmantur and TUI Cruises Net Investment Hedging USD ($)	Mar. 31, 2015 Pullmantur and TUI Cruises Net Investment Hedging EUR (€)	Dec. 31, 2013 Pullmantur and TUI Cruises Net Investment Hedging USD ($)	Dec. 31, 2013 Pullmantur and TUI Cruises Net Investment Hedging EUR (€)	Dec. 31, 2014 Pullmantur and TUI Cruises Net Investment Hedging USD ($)	Mar. 31, 2015 LIBOR Interest rate swaps Fair Value Hedging 5.41% Fixed rate debt	Mar. 31, 2015 LIBOR Interest rate swaps Fair Value Hedging 5.25% Fixed rate debt	Mar. 31, 2015 LIBOR Interest rate swaps Cash flow hedge Quantum of the Seas facility
Derivative Instruments
Fair Value, Concentration of Risk, Derivative Instruments, Assets	$ 3,100,000
Derivative instrument, observation period	3 years
Percentage of debt bearing fixed interest	28.20%	28.50%
Unsecured term loan						420,000,000.0	420,000,000	650,000,000.0	650,000,000
Debt amount						245,000,000								81,451,000				168,718,000
Interest rate on hedged debt (as a percent)						5.41%		5.25%
Additional interest above LIBOR rate (as a percent)																			3.87%	3.63%
Derivative, Variable rate of interest (as a percent)																			4.20%	3.89%
Anticipated loan balance										725,000,000.0	545,400,000
Additional interest above LIBOR rate										1.30%	0.40%										1.30%
Notional amount			2,900,000,000	2,900,000,000								3,100,000,000	3,000,000,000
Fixed rate on converted debt					3.74%					3.86%	2.85%
Unsecured Term Loan Maximum Borrowing Commintment Per Ship										735,000,000
Carrying value of non-derivative instrument designated as hedging instrument														$ 81,500,000	€ 75,800,000	$ 168,700,000	€ 139,400,000